c113e13c7ecec0bd386089db9a99ba75a45a31f1e7034411599a1808fbc382e1

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23/01/2024, 17:42

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General

Target

2024-01-23_0313e835bd67c290d4bd8be1d6962b5d_cryptolocker.exe
Size

58KB
MD5

0313e835bd67c290d4bd8be1d6962b5d
SHA1

0305e581b5a547857b27c27520e1b2ffed7ca378
SHA256

c113e13c7ecec0bd386089db9a99ba75a45a31f1e7034411599a1808fbc382e1
SHA512

4e045b0cdb397177807cdea9d2b720058e77fae64d2e0a470533357d3ff3a388badc6a5bbb8e648a223d3b7e77eeba4025709acd402626276ddfe257d6302964
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHq:btng54SMLr+/AO/kIhfoKMHdH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2448	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
456	2024-01-23_0313e835bd67c290d4bd8be1d6962b5d_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
456	2024-01-23_0313e835bd67c290d4bd8be1d6962b5d_cryptolocker.exe
2448	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 456 wrote to memory of 2448	456	2024-01-23_0313e835bd67c290d4bd8be1d6962b5d_cryptolocker.exe	28
PID 456 wrote to memory of 2448	456	2024-01-23_0313e835bd67c290d4bd8be1d6962b5d_cryptolocker.exe	28
PID 456 wrote to memory of 2448	456	2024-01-23_0313e835bd67c290d4bd8be1d6962b5d_cryptolocker.exe	28
PID 456 wrote to memory of 2448	456	2024-01-23_0313e835bd67c290d4bd8be1d6962b5d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-23_0313e835bd67c290d4bd8be1d6962b5d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_0313e835bd67c290d4bd8be1d6962b5d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:456
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
59KB

MD5
176ede6ac7f489a4a2df86069af602bc

SHA1
79bf74005b31851c50126f5292d60924977c68a8

SHA256
79cd42f5686e486eb80f752fbbbd73b684ff0b4c35e79fcd7d8d7458b3468c4e

SHA512
a1b55b913ffbba3d76492eb4bce5fa4f8235741f11ec14ccd93d1de7caf0159648d0a097041f9f8fded84de1accb94f744401127eb7a9c931ee923b63c48369f

Download Submit
memory/456-0-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/456-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/456-1-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2448-23-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download